Easy Apricot Jam Bars with Walnuts

Ingredients

• 1 cup unsalted butter, melted, plus more for greasing pan
• 1 1/4 cups whole wheat flour
• 1 cup all-purpose flour
• 1 3/4 cups old-fashioned rolled oats
• 1/2 cup granulated sugar
• 1/2 cup light brown sugar
• 1 1/2 teaspoons kosher salt
• 3/4 teaspoon baking soda
• 1 1/2 cups apricot jam
• 1/2 cup walnuts, roughly chopped

Directions

1. Heat the oven to 350 degrees F. Butter a 9- by 13-inch baking pan, then fit it with parchment paper, leaving about 1 inch hanging over the long edges.
2. In a large mixing bowl, combine the whole wheat flour, all-purpose flour, oats, granulated sugar, brown sugar, salt, and baking soda. Add 1 cup melted butter and stir until the mixture is evenly damp and crumbly.
3. Pack all but 3/4 cup of the streusel firmly into the prepared pan, making a level base. Spoon the jam over it, keeping a 1/4-inch edge clear all the way around. Squeeze the reserved streusel into small clumps, toss it with the walnuts, and scatter that mixture over the jam.
4. Bake until the surface is golden brown, about 40 minutes. Move the pan to a wire rack and cool completely, about 2 hours.
5. Use the parchment overhang to lift the dessert out of the pan and onto a work surface. Slice into bars. Store the bars at room temperature for up to 3 days.